import java.util.Scanner;

/**
 * Additional05
 */
public class Additional05 {

    public static void main(String[] args) {
       Scanner sc = new Scanner(System.in);
        System.out.println("请输入一个手机号(+86):");
        String phoneNumber = sc.nextLine();
        if (phoneNumber.length ()!= 11) {
            System.out.println("输入有误，请重新输入");
        }else{
            System.out.println(phoneNumber.substring(0, 3) + "****" + phoneNumber.substring(7));
        } 
    }
}